“The mind doesn't stop at the boundary of skin and skull but leaks out into the world.” This is the idea of the so-called extended mind or extended cognition thesis, which was in the main focus of this international 3-day conference. Researchers from both philosophy of mind and the cognitive sciences and neurosciences came together to explore the relevance of extended cognition ideas in their everyday work and practice as well as on the basis of theoretical and foundational points of view. Many of the inspiring and intensive discussions centered around the question of what cognition finally really is. A further goal was to make the thesis of extended cognition better known in the German-speaking community—a goal perhaps in parts already reached due to the unexpectedly large number of almost 100 interested participants.